化学工程2024，Vol.52Issue(5)：79-84,6.DOI:10.3969/j.issn.1005-9954.2024.05.013
R134a水合物蓄冷系统的散流器优化
Optimization of diffusers in R134a hydrate cold storage system
摘要
Abstract
In order to enhance the cold storage performance of the R134a hydrate continuous preparation system,investigated the influence of diffuser models with varying numbers of single-loop nozzles(4 and 6)and different annular ratios(0.5D,0.6D,0.7D,0.8D,0.9D)on the gas-liquid contact by the Fluent software.The b4-type(4 nozzles,0.8D)and c4-type(6 nozzles,0.8D)diffusers were fabricated based on the numerical simulation results to optimize their design.Experimental tests were conducted to compare their effects on the cold storage performance of the R134a hydrate in relation to a-type diffuser(the original diffuser with three nozzles and an annular diameter ratio of 0.4D).The experimental results reveal that both b4-type and c4-type diffuser systems enhance the cold storage performance of R134a hydrate.Among the diffusers tested,the c4-type diffuser yields the best overall cold storage performance:average cold storage rate of 0.345 kW,total cold storage capacity of 926.47 kJ,and hydrate formation mass of 912.54 g.The results show that optimized diffusers have obvious enhancement effect on the cold storage performance of R134a hydrate in this system.关键词
R134a水合物/蓄冷/优化/压缩式循环/数值模拟Key words
R134a hydrate/cold storage/optimization/compression cycle/numerical simulation分类
通用工业技术引用本文复制引用
杨振,谢应明,郭郁,俞秀娟,段汉坤..R134a水合物蓄冷系统的散流器优化[J].化学工程,2024,52(5):79-84,6.基金项目
国家自然科学基金资助项目(50806050) （50806050）
